/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesCommon/Public/Online/LobbiesCommonTypes.h
struct FLobbyEvents
TOnlineEventCal...
OnLobbyAttributesChanged
TOnlineEventCal...
OnLobbyInvitationAdded
TOnlineEventCal...
OnLobbyInvitationRemoved
TOnlineEventCal...
OnLobbyJoined
TOnlineEventCal...
OnLobbyLeaderChanged
TOnlineEventCal...
OnLobbyLeft
TOnlineEventCal...
OnLobbyMemberAttributesChanged
TOnlineEventCal...
OnLobbyMemberJoined
TOnlineEventCal...
OnLobbyMemberLeft
TOnlineEventCal...
OnLobbySchemaChanged
TOnlineEventCal...
OnUILobbyJoinRequested